I've always just used the low level connection from AV amp to subwoofer. Problem now is that I've bought a dedicated CD player and an integrated stereo amp (Arcam A22), the latter will be connected to the front pre-outs of my AV amp. My main speakers are standmounts and won't be able to handle deep bass, so I would like to connect the stereo amp to the subwoofer at high level. I also want to keep the low level connection for movies. There's only one master volume control on my sub, so one problem I can foresee is that the volume for the high and low levels is likely to be different, but I guess adjustments can be made on my AV amp to change the low level volume, so that I won't have to move the volume dial on the sub when switching between stereo and AV. Would the above work? Or are there other problems I need to think about?